def test_start(self, jhu_data, population_data, country):
# Setting
population = population_data.value(country)
series = PhaseSeries("01Apr2020", "22Apr2020", population)
# Whether units are registered or not
assert not series
assert series.summary().empty
def test_add_phase(self, jhu_data, population_data, country):
# Setting
population = population_data.value(country)
series = PhaseSeries("01Apr2020", "01Aug2020", population)
# Last phase when empty
empty_phase = PhaseUnit("31Mar2020", "31Mar2020", population)
assert series.unit(phase="last") == empty_phase
# Add a phase with specified end date: 0th
series.add(end_date="22Apr2020")
# Add a phase with specified population value: 1st
with pytest.raises(ValueError):
series.add(end_date="22Apr2020")
series.add(end_date="05May2020", population=int(population * 0.98))
# Add a phase with specified the number of days: 2nd
series.add(days=21)
# Filling past phases and add a future phase: 3rd, 4th
series.add(end_date="01Sep2020")
# Add a future phase: 5th
series.add(days=30)
# Summary
df = series.summary()
base_cols = [Term.TENSE, Term.START, Term.END, Term.N]
assert set(df.columns) == set(base_cols)
assert series.to_dict()["0th"]["Type"] == Term.PAST
first_len = len(df)
assert set(df.loc["3rd", :].tolist()) == set(
[Term.PAST, "27May2020", "01Aug2020", 123998518])
assert set(df.loc["4th", :].tolist()) == set(
[Term.FUTURE, "02Aug2020", "01Sep2020", 123998518])
# Disable/enable a phase
series.disable("0th")
assert "0th" not in series.to_dict()
assert len(series) == first_len - 1
assert len([unit for unit in series]) == first_len
assert len([unit for unit in series if unit]) == first_len - 1
series.enable("0th")
assert "0th" in series.to_dict()
assert len(series) == first_len
# Clear future phases: 4th and 5th will be deleted
series.clear(include_past=False)
assert "4th" not in series.to_dict()
assert len(series) == first_len - 2
assert series
# Clear all phases
series.clear(include_past=True)
assert len(series) == 0
assert not series
# Filling past phases: 0th
series.add()
assert len(series) == 1
# Last phase
assert series.unit(phase="last")